I recently picked up Final Fantasy: Brave Exvius, and wanted to ask questions on it. After not finding any suitable tag, I tried to use iirc ff-brave-exvius, which had to be edited by someone to the correct final-fantasy-be.
Today I looked up the other mobile game based on FF chars, which is Final Fantasy: Record Keeper. Questions for this are tagged as ff-record-keeper which makes the specific game name more prominent than the series (which imho is the better choice here).
I realize that most FF games don't really have a well used game name, or its still known more by the series number (e.g. ff-a-realm-reborn or final-fantasy-arr likely wouldn't be as recognizable as final-fantasy-14)
However, in this case perhaps it makes sense to either rename the Brave Exvius tag to ff-brave-exvius, or at least allow that as a tag synonym so that it shows up when searching for a tag to use.